Last Mothers’ Day, Heidi Klum was down in the dumps and freshly-single after splitting from husband-of-seven-years Seal.

But what a difference a year has made for the German model and mother-of-four.

And relax: Heidi Klum tweeted a snap of herself floating around a swimming pool on a Li-Lo as she celebrated Mothers’ Day in style on Sunday

Moved on: Klum and Seal had only just split last Mothers’ Day… but she seems much happier this year round

In an apparent thinly-veiled attack at her ex, Heidi happily tweeted a bikini snap of herself along with the message: ‘Happy Mother’s Day! Best Mother’s Day ever….’

Of course Heidi is now happily ensconced with bodyguard-turned-boyfriend Martin Kirsten, which might explain her very public and gleeful declaration of domesticated bliss.

Heidi, 39, looked fantastic as she floated around a pool on a Li-Lo, glass of wine in hand, showing off her toned figure in an orange bikini.

Over the weekend the German model played the doting mother as she spent time with her brood and boyfriend Martin.

The family were spotted out in Los Angeles where they hit up the beach in Santa Monica and enjoyed a bike ride along the boardwalk.

Heidi recently told Us Weekly that it can tough to juggle the schedules of her four children.

She said: ‘It’s a huge responsibility to have four kids.

Hands on mother: Klum was spotted enjoying some quality time with her brood over the weekend in Santa Monica, seen here with daughter Leni and a friend